DESC: The NV-U70 Portable Satellite Navigation System from Sony is the perfect companion for long trips, or a short ride across town. The NV-U70 features a brilliant, full color, 3.5 inch touch-screen display, resident two-way speaker system, and is pre-loaded with maps of the US and 1.6 million other points of interest. The NV-U70 contains a 12-channel GPS receiver with proprietary RF technology, a built in antenna, and 1 GB of imbedded flash memory, all in the palm of your hand. This convenient, user-friendly, compact system can be easily mounted on the windshield or dashboard of virtually any vehicle. Its imbedded rechargeable lithium-ion battery allows up to 4 hours of operation outside of the car.